In Tug Malta, a subsidiary of Rimorchiatori Riuniti of Genoa, Italy, took delivery of the tug Spinola, the latest AVT Class tug designed by Robert Allan Ltd. of Vancouver, Canada. The vessel was built by Astilleros Armon of Navia, Spain. This vessel is the second in a series built for this Owner, but this edition incorporates a number of significant changes from the previous vessel of this class, Messico.
The Spinola was classed by RINA, and will be suitable for a wide range of duties including harbour towage and ship-handling, coastal towing, salvage and escort operations and, rather uniquely for a VSP tug, is also equipped for heavy duty anchor-handling. The tug is also fitted out for firefighting and oil spill response duties.
Design features of the AVT This second tug of the series incorporates some significantly different features specifically to enable the anchor-handling function. These include different, wider stern lines to incorporate a 3500L x 1300D stern roller, a set of flush-mounted tow-pins and shark-jaws, and additional tugger winches. The aft deck is heavily reinforced for anchor impacts, and the entire deck is rated for a UDL of 5 tonnes /sq.m. The design features a full raised forecastle running nearly half the length of the tug to provide a high standard of accommodation and the best possible sea-keeping capability for operation in exposed conditions. The general layout of the Spinola is illustrated in the General Arrangement Drawing attached as Figure 1.
Brand new motorboat might have been dressed into large standards getting a great crew of up to fourteen. The main platform accommodation is sold with three (3) two-individual compartments, five (4) one-people cabins, an effective galley, clutter, galley areas, workshop, oils research, locker room/lobby, and you may patio shop. New deckhouse on forecastle deck peak includes five (4) one-individual administrator cabins. New wheelhouse is perfect for limit visibility with one manage station providing limitation visibility to help you each other fore and you may aft patio working areas, on the increased exposure of the latest aft patio. The reduced patio has engineer’s stores and you may washing facilities. All cabins try out-of an ample proportions, and you may offer en-collection commode organization. New music peak in the staff housing try submitted regarding listing of sixty dBA, attained courtesy usage of state-of-the-art types of isolating head propulsion machines, and additionally high-grade insulations and you will floating flooring techniques.
Main Propulsion for the AVT Elizabeth comprises a pair of MaK 8M25 diesel engines, each rated 2,640 kW at 750 rpm, and each driving a Voith model 32R5-265-2 cycloidal propeller in tractor configuration. On trials this combination delivered a sustained Bollard Pull of 81.6 tonnes, and a free running speed of 14.1 knots. The indirect escort steering force is estimated at 115 tonnes at 10 knots, and indirect braking estimated at 147 tonnes at 10 knots.
The fresh new electronic plant comprises of around three (3) similar diesel gen-kits, for each and every that have a beneficial 380 volt/50 Hz energy output out-of 125 kW.
The main pulling winch is actually an excellent waterfall-style, double drum method of, which have unmarried lateral warping direct. The top of instrument is capable of space step 1,000 yards regarding 56 mm steel cord rope. Brand new anchor windlass, in the a lateral axis setting is fitted which have a couple of (2) strings wildcats and two (2) warping minds, which are clutched by themselves. The fresh keep includes a hydraulically powered storage reel to possess putting away to 1,000 metres off spare 56 mm metal cord rope.
Pulling liberty is actually enhanced of the inclusion regarding an 80-tonne, radial sleeve pull hook, while you are rescue and standard stores/platform functions are aided from the introduction away from a 25-tonne-metre knuckle increase crane. Ship-handling fenders at the tight (skeg prevent) are a good 900 x 450 cylindrical fender a lot more than a row out of 450 mm “W” cut-off fenders. An excellent three hundred x three hundred hollow “D” fender provides safety from the fundamental and you may foc’sle platform natural contours, and you will “W” block sorts of fendering is used once more during the bend.